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Installation and user manual – MGE UPS Systems 40-75KVA User Manual

Page 49

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Glossary

G — 3

86-173010-00 A00

Module

Refers to individual power inverter module.

N

Neutral.

NC

Normally closed.

NO

Normally open.

NEC

National Electrical Code.

NFPA

National Fire Protection Association.

PN

Part number.

On-line mode

Inverter output power is the primary energy source to load.

OSHA

Occupational Safety and Health Agency.

PCA

Printed circuit assembly.

PCB

Printed circuit board.

PWM

Pulse Width Modulation.

Q1

UPS input isolation switch.

Q3BP

Optional maintenance bypass switch.

Q4S

UPS bypass switch.

Q5N

UPS isolation circuit breaker.

Remote Emergency

A switch used for shutting down electrical equipment from a location away from

Power Off

the equipment.

REPO

Remote Emergency Power Off.

SCR

Silicon controlled rectifier.

Shipping damage

Any damage done to an article while it is in transit.

SCR

Silicon controlled rectifier.

Shipping Pallet

A platform on which articles are fixed for shipping.

Static Transfer

A solid state switching mechanism electronically controlled to pass AC power directly

from the utility to an output load.

Technician

Refers to an electronic technician qualified to maintain and repair electronic

equipment. Not necessarily qualified to install electrical wiring.

Test connector

DB-9 type connector on the LCD panel allowing MGE UPS SYSTEMS Customer Support

Service technician to access programmable and diagnostic features of the system.

UL

Underwriter’s Laboratories, Inc.

V

Volts

VA

Volt-amperes, unit for apparent power measurement, equal V x I.

VAC

Voltage of AC type.

Vdc

Voltage of DC type.

Installation and User Manual